// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/quic/crypto/aes_128_gcm_12_encrypter.h"

#include <openssl/evp.h>

namespace net {

namespace {

    const size_t kKeySize = 16;
    const size_t kNoncePrefixSize = 4;

} // namespace

Aes128Gcm12Encrypter::Aes128Gcm12Encrypter()
    : AeadBaseEncrypter(EVP_aead_aes_128_gcm(),
        kKeySize,
        kAuthTagSize,
        kNoncePrefixSize)
{
    static_assert(kKeySize <= kMaxKeySize, "key size too big");
    static_assert(kNoncePrefixSize <= kMaxNoncePrefixSize,
        "nonce prefix size too big");
}

Aes128Gcm12Encrypter::~Aes128Gcm12Encrypter() { }

} // namespace net
